Delete Author and Date Information under WordPress Posts for the Twenty Ten Theme

Delete author and date credits for posts in the TwentyTen WordPress theme – for rolling posts edit loop.php and for single page posts edit loop-single.php

Comment out or (delete) twentyten_posted_on as below on the second line.

<div class="entry-meta">
<!-- <?php twentyten_posted_on(); ?> -->
</div>
<!-- .entry-meta -->